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Determination and ecological risk assessment of two endocrine disruptors from River Buffalo, South Africa

4-tert-Octylphenol (4-tOP) and triclosan (TCS) are endocrine disruptors which have been detected in environmental matrices such as air, soil and water at ultra-low levels. Exposure to endocrine disruptors may account at least in part, for the global increase in the incidence of non-communicable dise...

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Autores principales: Olaniyan, Lamidi W. B., Okoh, Anthony I.
Formato: Online Artículo Texto
Lenguaje:English
Publicado: Springer International Publishing 2020
Materias:
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC7644535/
https://www.ncbi.nlm.nih.gov/pubmed/33155083
http://dx.doi.org/10.1007/s10661-020-08717-0
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author Olaniyan, Lamidi W. B.
Okoh, Anthony I.
author_facet Olaniyan, Lamidi W. B.
Okoh, Anthony I.
author_sort Olaniyan, Lamidi W. B.
collection PubMed
description 4-tert-Octylphenol (4-tOP) and triclosan (TCS) are endocrine disruptors which have been detected in environmental matrices such as air, soil and water at ultra-low levels. Exposure to endocrine disruptors may account at least in part, for the global increase in the incidence of non-communicable diseases like cancers and diabetes and may also lead to an imbalance in the aquatic ecosystem. River Buffalo is an important natural resource in the Eastern Cape of South Africa serving more than half a million people. The presence of the two compounds in the river water hitherto unknown was investigated during winter seasons using solid-phase extraction and gas chromatography–mass spectrometric techniques. The sampling points differed by some physicochemical parameters. The concentration of 4-tOP ranged 0–755 ng/L, median value 88.1 ng/L while that of TCS ranged 0–1264.2 ng/L and the median value was 82.1 ng/L. Hazard quotient as an index of exposure risk varied according to daphnids ˃ fish ˃ algae for 4-tOP exposure while HQ for TCS exposure was algae > daphnids = fish showing that both compounds were capable of causing imbalance in the aquatic ecosystem. [Figure: see text]
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spelling pubmed-76445352020-11-10 Determination and ecological risk assessment of two endocrine disruptors from River Buffalo, South Africa Olaniyan, Lamidi W. B. Okoh, Anthony I. Environ Monit Assess Article 4-tert-Octylphenol (4-tOP) and triclosan (TCS) are endocrine disruptors which have been detected in environmental matrices such as air, soil and water at ultra-low levels. Exposure to endocrine disruptors may account at least in part, for the global increase in the incidence of non-communicable diseases like cancers and diabetes and may also lead to an imbalance in the aquatic ecosystem. River Buffalo is an important natural resource in the Eastern Cape of South Africa serving more than half a million people. The presence of the two compounds in the river water hitherto unknown was investigated during winter seasons using solid-phase extraction and gas chromatography–mass spectrometric techniques. The sampling points differed by some physicochemical parameters. The concentration of 4-tOP ranged 0–755 ng/L, median value 88.1 ng/L while that of TCS ranged 0–1264.2 ng/L and the median value was 82.1 ng/L. Hazard quotient as an index of exposure risk varied according to daphnids ˃ fish ˃ algae for 4-tOP exposure while HQ for TCS exposure was algae > daphnids = fish showing that both compounds were capable of causing imbalance in the aquatic ecosystem. [Figure: see text] Springer International Publishing 2020-11-06 2020 /pmc/articles/PMC7644535/ /pubmed/33155083 http://dx.doi.org/10.1007/s10661-020-08717-0 Text en © The Author(s) 2020 Open Access This article is licensed under a Creative Commons Attribution 4.0 International License, which permits use, sharing, adaptation, distribution and reproduction in any medium or format, as long as you give appropriate credit to the original author(s) and the source, provide a link to the Creative Commons licence, and indicate if changes were made. The images or other third party material in this article are included in the article's Creative Commons licence, unless indicated otherwise in a credit line to the material. If material is not included in the article's Creative Commons licence and your intended use is not permitted by statutory regulation or exceeds the permitted use, you will need to obtain permission directly from the copyright holder. To view a copy of this licence, visit http://creativecommons.org/licenses/by/4.0/.
spellingShingle Article
Olaniyan, Lamidi W. B.
Okoh, Anthony I.
Determination and ecological risk assessment of two endocrine disruptors from River Buffalo, South Africa
title Determination and ecological risk assessment of two endocrine disruptors from River Buffalo, South Africa
title_full Determination and ecological risk assessment of two endocrine disruptors from River Buffalo, South Africa
title_fullStr Determination and ecological risk assessment of two endocrine disruptors from River Buffalo, South Africa
title_full_unstemmed Determination and ecological risk assessment of two endocrine disruptors from River Buffalo, South Africa
title_short Determination and ecological risk assessment of two endocrine disruptors from River Buffalo, South Africa
title_sort determination and ecological risk assessment of two endocrine disruptors from river buffalo, south africa
topic Article
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC7644535/
https://www.ncbi.nlm.nih.gov/pubmed/33155083
http://dx.doi.org/10.1007/s10661-020-08717-0
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